Steam-generator.



N0. 783,617. PATENTED FEB. 28, 1905. G. D. COOPER.

STEAM GENERATOR.

APPLICATION FILED OUT. 27,1904.

WITNESSES.

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(nrEORO-E DORELL COOPER, OF ST. JOIrINS, li llGl-IIGAN, ASSIGNOR TOJESSIE COOPER, Ol ST. JOHNS, hllClillG-AN.

SPECIFICATION fOl'ming part of Letters Patent No. 783,617, datedFebruary 28, 1905.

Application filed October 27, 1904. Serial No. 230,190.

To rtZZ who/rt 116 Hm/y concern:

Be it kno wn that 1, (1i nose It Do a 10 LL Ooo er: a, a citizen of theUnited States of America, residing at St. Johns, in the county ofClinton and State of Michigan, have invented certain new and usefulImprovements in Steam-(utenerators, of which the following is aspecilication, reference being had therein to the accompan yingdrawings;

This invention relates to new and useful improvements insteam-generators, and has particular reference to that class ofgenerators used for heating houses.

To this end the invention consists in the novel construction of thegenerator involving the use of the fewest possible parts and of thewater-jacketed lire-pot whereby the vertical water-wall may be directlysupported upon the lire-pot in constant comn'iunication therewith tomaintain a circulation of the water therein; and the invention consists,further, in the peculiar construction, arrangement, and emnbination ofparts, all as more fully hereinafter described, and shown in theaccompanying drawings, in which- Figure 1 is a vertical transverfisection through my improved generator and lire-pot; Fig. 2, a verticalcentral longitudinal section through the generator and lire-pot; Fig. 3,a plan view of the fire-pot detached.

A. is the lire-pot, provided with the annular water-spaee B andperipheral flange C, under the forward edge of which the transversemetal plate D projects, which entirely fills the space between theboiler-frrmt and lire-pot, said plate being let into the brick sidewalls at its opposite ends to :form a support for the lire-pot at itsforward end.

E represents laterally-extending lugs integrally formed with theiire-pot near its rear end and adapted to be let into the brick sidewalls to support the lire-pot therefrom in conjunction with the plate1.), which plate may, if desirml, be made integral with the lire-pot.

(i is a vertical water-wall adapted to be secured to the top of thelire-pot at its rear edge by screw-bolts ll, passing through aperturedears l on the watm-wall and lire-pot, respectively, the meeting faces ofthe lire-pot and water-wall being faced off to form a tight joint,communicating with each other through openings in the iirc-pot andwater-wall, respeetlvely.

J represents stay-bolts connecting the front and rear water-walls.

K represents the water-tubes projecting from the front side of thewater-wall, closed at their outer ends and threaded into openings in thewater-wall at their inner ends, said tubes being preferably inclinedslightly upwardly to cause the water to drain toward the water-mill.

L is the steam-drum, supported upon the vertical water-wall byscrew-bolts M, passing through apertured ears N on the drum and wall,respectively, said drum communicating with the water-wall through thepassage O.

P is the smoke-stacl It the boiler-front provided with the usual fireand ash-pit doors 5 and U is the grate supported within the lire-pot, sothat the heat of the [ire will heat the walls of the lire-pot and watercontained therein,thereby causing an upward circulation of the same,thus utilizing what would be waste heat to initially heat the water,which I find to be a great advantage and saving in this type of heaters.

By arranging the water-tubes in the form of an arch. a lire-chamber isformed giving ready access to the lire-pot which holds the lire, and byproviding the lire-pot with a wator-jacket forming part of thecirculating system it acts both to prevent the lire-pot from burning outand utilizing the waste heat to ing the circulation.

The water-wall and lire-pot being each intcgrally cast in one piece withthe lateral lugs and the steanrdrmn in another piece, it forms a simpleand cheap c mstruction with but two joints, which can be easilyconnected together by scre\vl )olts, thus making a heater which anyordinary steam-litter :an set up without the use of special tools.

Having thus fully described my invention, what .1 claim is 1. in asteam-generator, the (JOlHlJll'ltttlUll of l a lire-pot formed With anannular water-space heat the water therein, thus 'reatlv inereasandlaterally-extending supporting-lugs, a water-wall supported on the rearend of the tirepot, a steam-d rum supported at one end by said wall andwater-tubes closed at one end and communicating with the water-space ofthe wall at their opposite ends, said tubes being arranged to form anarch over the lire-pot.

2. In a steam-generator, the combination of a fire-pot formed with anannular water-space, a water-wall formed with apertured lugs at itsopposite ends, apertured lugs on the lire-pot registering with the lugson the lower end of the wall and bolts connecting said lugs,a steamdrumsupported by said wall, bolts passing through lugs on the adjacent endsof said d rum and wall rigidly uniting said drum and wall, andwater-tubes closed at one end and communicating with the water-space ofthe wall at their opposite ends.

3. In a steam-generator, the combination of a tire-pot integrally formedwith an annular water-space and late rally-extending lugs forming thesupporting means for the lire-pot, a

vertical water-wall supported on the lirepot,.

lugs formed with apertures on the lower end of the water-wall, boltsconnecting said waterwall and lire-pot through said apertured lugs, asteam-drum wholly supported by said wall, apertured lugs on the drum andwall, bolts unitingsaid drum and wall through said apertured lugs, andwater-tubes closed at one end and communicating with the water-space ofthe wall at their opposite ends, said tubes beingarranged to form anarch over the fire-pot.

4. In a steam-generator, the combination with the casing, of a fire-potformed with an annular water-space and a peripheral flange around itsupper edge, oppositely-disposed lugs on the tire-pot adapted to be letinto the walls of the casing, a horizontal plate adapted to engage theperipheral flange to fill the space between the tire-pot and all andforming in conjunction with said lugs the means for supporting thelire-pot, a vertical waterwall supported on the lire-pot andcommunicating therewith, a steam-drum at the upper end of said wall andcommunicating therewith, and water-tubes closed at their outer ends andcommunicating with the water-wall at their inner ends.

5. In a steam-generator, the combination with the casing, of a lire-potintegrally formed with an annular water-space and a peripheral flange,oppositely-disposed lugs integrally formed with said flange and adaptedto support the lire-pot, a plate engaging said flange and adapted toseparate the tire-chamber from the ash-pit, a vertical water-wallcommunicating with the water-space of the lire-pot and supportedthereon, means for securing the water-wall and lire-pot together, acylii'idrical steam-d rum supported by said wall and watertubescommunicating at their inner ends with the water-space of the wall, saidtubes being closed at their outer ends.

6. In a steam-generator, the combination with the walls or casing, of afire-pot formed with an annular water-space and a peripheral flangearound its upper edge, oppositely-disposed lugs forming a continuationof said flange adapted to be let into the side walls to support the rearend of the ire-pot, aplate engaging said flange adapted to be let intothe sidewalls to support the front end of the firepot and separate thefire-chamber from the ash-pit, a vertical water-wall supported on thelire-pot and communicating therewith, a horizontal cylindricalsteam-drum communicating with and supported by said wall at its upperend and water-tubes closed at their outer ends communicating with thewater-space of the wall at their inner ends.

7. In a steam-generator, the combination with the steam-drum,otthevertical water-wall supporting said drum, a plurality ot' watertuhoscommunicating with the water-wall, said wall having openings in itslower portion and integrally formed with oppositely-disposed aperturedcars, a tire-pot formed with a peripheral flange and an annularwater-space having openings adapted to register with the openings in thewater-wall, bolts passing through said ears and forming the means foruniting the water-wall and fire-pot, lugs on one end of the tire-pot anda plate adapted to engage the peripheral flange at the opposite end ofthe lire-pot to form the supporting means therefor.

8. In a steam-generator, the combination with the horizontal cylindricalsteam-drum, ot' the vertical water-wall supporting said drum at one endand communicating therewith, said wall having openings in its lower endand provided with oppositely-extending apertured cars, a plurality ofwater-tubes closed at their outer ends and communicating with thewater'- wall at their inner ends said tubes arranged in the form of anarch to form a tire-chamber extending the full length of said tubes, afirepot formed with an annular water-space having openings registeringwith the openings in the water-wall, bolts passing through saidapertured ears for securing the water-wall and lire-pot together, andoppositely-disposed lugs on the tire-pot forming the supporting meansfor the fire-pot.

In testimony whereof Iaflix my signature in presence of two witnesses.

GEORGE DORELL COOPER.

W'itnesses:

WILL H. BRUNSON, 1'). 0. POST.

